894122249 has 2 divisors, whose sum is σ = 894122250. Its totient is φ = 894122248.

The previous prime is 894122239. The next prime is 894122261. The reversal of 894122249 is 942221498.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 883278400 + 10843849 = 29720^2 + 3293^2 .

It is a cyclic number.

It is not a de Polignac number, because 894122249 - 2⁴ = 894122233 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (894122239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 447061124 + 447061125.

It is an arithmetic number, because the mean of its divisors is an integer number (447061125).

Almost surely, 2^894122249 is an apocalyptic number.

It is an amenable number.

894122249 is a deficient number, since it is larger than the sum of its proper divisors (1).

894122249 is an equidigital number, since it uses as much as digits as its factorization.

894122249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82944, while the sum is 41.

The square root of 894122249 is about 29901.8770146625. The cubic root of 894122249 is about 963.3829752824.

The spelling of 894122249 in words is "eight hundred ninety-four million, one hundred twenty-two thousand, two hundred forty-nine".